抄録
This paper reports on a new technique for measuring of birefringence to obtain stress fields using laser photoelasticity. The technique of this report provides for the measurements of magnitude and the azimuth of the birefringence. In order to check the validity of the technique, birefringence of a 10[nm] waveplate and 79.1[nm] waveplate were examined. Good quantitative agreement was obtained between measured values and the theoretical calculations. The effectiveness of the new technique of this report was confirmed by experimental result.
